Abstract the ioremap code away from the caching mode internals.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Acked-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200408152745.1565832-2-hch@lst.de